Angle-cock valve.



R. A. CALDWELL.

ANGLE COCK VALVE. APPLICATION FILED MAR. 12. 1914. RENEWED NOV- 28. 1916.

L211 6 0680 Patented Feb. 13, 1917.

for /7. CHLDWEZL ATTORNEYS n earns aar ora ion,

ROY ALEXANDER CALDWELL'OF LOS ANGELES, (IALIFORNIA.

ANGLE-COCK VALVE.

remote.

Specification of Letters Patent. Patented Feb. 13, 11917..

Application filed March 12 1914, Serial No. 824,197. Renewed November 28, 1916. Serial No 133,985.

To all whom it may concern:

Be it known that I, ROY A. GALDWELIP,

a citizen of the United States, and a res1-.

dent of Los Angeles, in the county of Los Angeles and State of California, have made a new and useful Improvement in Angle- Cock Valves, of which the following is a specification.

My present invention relates generally to valves and more particularly to an angle cock valve, my. object being to provide a simple, inexpensive construction, whereby the train line may be cut off and the pressure bled from the air hose in a simple and elfective manner preparatory to uncoupling and removing the hose.

In carrying out my invention I preferably utilize the construction shown in the accompanying drawing, forming a part of this specification, and in which' Figure 1 is a vertical longitudinal section through my improved valve.

Fig. 2 is a horizontal section through a portion thereof illustrating the valve open.

Fig. 3 is a similar view illustrating the valve closed with the bleeding recess in nonlapped position, and

Fig. 4 is another similar view illustrating the valve in closed position with the bleeding recess in lapped position.

Referring now to these figures, the casing A of my improved angle cock is generally tubular in form, one end (1 thereof being downwardly curved and internally threaded.

to receive one end of the hose B, and the opposite end being also internally threaded for the reception of one end of the train line C.

Intermediate its ends the casing A is provided with vertically alined and diametrically opposing openings, the walls of which openings are tapered slightly in order to receive the end portions of the valve sleeve D firmly seated therein, the lower one of the and formed to provide seats for the relatively opposite sides of the sleeve, one of these side portions a, as best shown in Fig. 2, being provided with a bleedport a 8X- tending therein and communicating with a small bleed port d in the sleex e D, the latter being also provided with diametrically opposing slotted openings cl communicating with the interior of the casing A upon relatively .opposite sidsof its portions a.

In the sleeve D is seated a tapering plug F which forms the valve proper, and the upper end f of which is squared to receive the apertured end of the usual curved valve.

handle G,thetapering bodyof the plugF being held in snugly fitted relation within its seat formed by th'ersleeve D by means of acoil spring H seated between the closing cap E and the lower enlarged end of the valve plug and disposed within the socket e in the closing cap before mentioned.

The valve plug F has a transverse slotted opening f constituting the main valve opening and adapted to register with the sleeve openings d in order to establish communication between the train line C and the hose B, this position being shown in Figs. 1 and 2. As usual, however, the valve plug is rotatable by means of the handle G to various positions in which its main opening sleeve opening leading toward the hose B.

Thus with the plug F turned to the position shown in Fig. 4, recess 7 laps the bleed openings and the adjacent sleeve opening 03' establishing communication between the interior of the hose and the atmosphere at a time when the trainline C is entirely closed. In this manner pressure within the hose is gradually bled therefrom whereby to enable the hose to be quickly and easily cdetached without danger either to the parts of the hose, its couplings, or the-operator.

In an angle cook, the combination with a tubular body having diametrically opposing apertures, a valve sleeve having its ends extended into the diametrically opposing apertures of the body, said sleeve and said apertures being correspondingly tapered, a

" closing cap threaded into theenlarged opening of the casing and provided vwith an inner central socket, a plug disposed within the sleeve and also tapered to correspond to the taper thereof, said plug and said sleeve having slotted transverse openings of substantially smallerdimensions than \the bore of the body and [adapted to register to-establish communication between the ends of the body and said body and said sleeve hav ing laterally extending bleed openings adj acent to one of the said slotted openings of the sleeve, a spring seated in the cavity of e the closing cap and bearing against the enlarged end of the valve plug in order to l5tsnugly seat the same Within the sleeve, the

, said valve plug having a horizontally slotted recess in itsperipheral surface between itsslot extendsat right angles to the axis of the body, and a handle for turning the valve plug, all for the'purposedescribed.

ROY ALEXANDER CALDWELL.

Witnesses:

-C. C. GRIPPEN, W. C. WATSON.- 

